Phrase guide

direct product

noun · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The set of all possible tuples whose elements are elements of given, separately specified, sets.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, set-theory

Examples

  • If A and B are sets, their direct product is the set of ordered pairs (a,b) with a in A and b in B.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Such a set of tuples formed from two or more groups, forming another group whose group operation is the component-wise application of the original group operations and of which the original groups are normal subgroups.

Definition source: English Wiktionary via Wiktextract

Topics: group-theory, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Such a set of tuples formed from two or more rings, forming another ring whose operations arise from the component-wise application of the corresponding original ring operations.

Definition source: English Wiktionary via Wiktextract

Qualifier: ring theory

Examples

  • A Boolean ring of order 2n (or dimension n) may be constructed as the direct product of n Boolean rings of dimension one.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A topological space analogously formed from two or more (up to an infinite number of) topological spaces.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, topology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Any of a number of mathematical objects analogously derived from a given ordered set of objects.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A high-level generalization of the preceding that applies to objects in an arbitrary category and produces a new object constructable by morphisms from each of the original objects.

Definition source: English Wiktionary via Wiktextract

Topics: category-theory, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: suora tulo — product of sets — see also Cartesian product
  • Italian: prodotto diretto — product of sets — see also Cartesian product
  • Polish: iloczyn grup — product of sets — see also Cartesian product